Vic challenges Shane and deals with threats to his family. A federal agent arrives in Farmington to investigate a recent wave of violence.
As a local gang war heats up, Vic positions himself as a valuable commodity to the warring parties. Corrine and Cassidy confront Vic.
Vic works an angle to make himself valuable to the Armenian mob. Corrine finds herself in a surprising legal jam. Tina targets a producer of adult entertainment.
The assassination of a city official undermines Vic's plan to fuel a war that will bring down both the Mexican and Armenian gangs.
As Vic and Aceveda work to conceal their complicity in the murder of the City Controller, a serial killer's trial threatens to expose the truth about Claudette's failing health.
After buying some time to continue his pursuit of Pezuela, Vic hatches a deadly plan to eliminate the Armenian mob and finally avenge Lem's murder.
As Shane looks to end the threat after realizing that he was marked for death by Vic, Dutch questions a greedy ex-cop about a series of burglaries in Claudette's neighborhood.
As Shane and his family are forced to run following his failed attempt to kill his former partners, Vic looks to parlay his connection to Pezuela into a job with a federal task force that is investigating the drug cartels.
As Shane and Mara stay one step ahead of Vic and the police, Aceveda cooperates with Pezuela to help the feds, while Dutch manipulates Rita Denton in his investigation of her teenage son, Lloyd.
As he puts a price on Shane's head, Vic is asked to prove his loyalty to Beltran by killing Pezuela.
As Claudette and Dutch work to get Mara and Corrine's cooperation, and Vic offers to negotiate a drug deal between Beltran and city's gangs, Shane threatens to expose the Strike Team's criminal past.
As Mara kills in order to keep her and Shane on the run, the confession Vic makes in exchange for immunity and to salvage his career stuns his federal handlers.
As Vic hopes his immunity deal will help keep his family together, and Shane takes extreme measures to keep his pregnant wife from being charged with murder, Dutch finds he's a suspect in the disappearance of a teenage serial killer's mother.
